General dry type Isolation Transformer
GE Transformer offers high-performance general dry type isolation transformers designed for safe, efficient, and reliable power distribution. Engineered to provide superior electrical isolation, these transformers protect sensitive equipment from electrical noise, voltage spikes, and transient disturbances.
Constructed with premium silicon steel cores and copper or aluminum windings, they deliver low losses, stable voltage regulation, and long service life. The oil-free design enhances safety, reduces fire risk, and requires minimal maintenance, making them ideal for indoor and critical applications. Optional electrostatic shielding is available for enhanced noise suppression.
Available in a wide range of kVA ratings and voltage configurations, our dry type isolation transformers can be tailored to meet specific project requirements. They are widely used in data centers, healthcare facilities, industrial systems, and commercial buildings, ensuring clean and dependable power for modern infrastructure.
General dry type Isolation Transformer
Tailored to Your Exact Specifications
Core Customization Options
Capacity
Single Phase: 3–500 kVA
Three Phase: 5–3000 kVA
Voltage Configuration
Fully customizable primary and secondary voltages to match local grid and equipment requirements
Winding Material
Copper or aluminum, depending on efficiency and cost requirements
Enclosure Design
Custom RAL colors and enclosure materials, including cold-rolled steel or 304 / 316L stainless steel
Protection Rating
IP20 / IP23 / IP54, with IP65 available for harsh environments
Frequency & Insulation
50 / 60 Hz options, with Class F or Class H insulation for different thermal demands
Optional Features & Integrated Solutions
Mobility Options
Heavy-duty caster wheels for flexible installation and relocation
Built-in Protection Components
Circuit breakers, AC contactors, fuses, and leakage protection devices
Thermal Management
Integrated temperature controllers and forced air cooling systems
Surge & Noise Protection
Surge protection devices (SPD) and electrostatic shielding
Harmonic Mitigation
K-factor designs (K4, K13, K20) for non-linear load applications
General dry type Isolation Transformer Parameters
| Capacity | Single Phase: 3 to 500kVA Three Phase: 5 to 3000kVA |
| Primary Voltage | 800V, 690V, 660V, 600V, 480V, 440V, 415V, 380V, 240V (Customizable) |
| Secondary Voltage | 800V, 660V, 600V, 480V, 440V, 415V, 380V, 240V, 120V, 110V (Customizable) |
| Winding Material | Copper or aluminum |
| Frequency | 60Hz (50/60Hz Optional) |
| Connection Type | Dyn11/Yyn0 or others |
| Temperature Rise | ≤115° Other temperature rise options are customizable |
| Insulation | Class F or Class H |
| Cooling Method | ANAN (Natural Air) / ANAF (Forced Air with customizable fans) |
| Efficiency (%) | ≥98% |
| Noise level (dB) | ≤45db |
| Voltage drop | <3% |
| Enclosure Type | Protection rating up to IP65; colors and materials are customizable |
| Optional Accessories | Circuit breaker, AC contactor, Thermostat, Output leakage protection, Fuse, Inverter or others |
| Warranty | 12 Months |
| Certifications | IEC, CE, UL, CSA, IEEE C57.110 |
| Minimum Order Quantity | ≥1 set |
| Packaging Details | International standard wooden crate or as per actual shipping requirements |
| Delivery Time | Generally 5-10 days, depending on order quantity |
dry type Isolation Transformer
Data Centers & IT Infrastructure
Healthcare & Medical Facilities
Industrial Automation & Manufacturing
Commercial Buildings
Renewable Energy Systems
Telecommunications
Healthcare & Medical Equipment
EV Charging Infrastructure
Why Choose GE Transformer
Quality Control: Quality is a core value of GE Transformer. We conduct Factory Acceptance Testing (FAT), type testing, and third-party inspections to ensure superior quality. We strictly adhere to the ISO 9001 quality management system, committed to providing our customers with the highest quality products.
Professional Team: Our team comprises highly skilled professionals dedicated to responding quickly to customer needs. All GE Transformer team members receive systematic training and continuously improve their capabilities through rigorous quality standards and practices. Our commitment to customer service, product innovation, engineering excellence, and social and environmental responsibility makes us a trusted partner in the global power industry.
Certifications
- ISO9001：2015
- CE Certifications:
- UL Certifications:
- CSA Certification:
- CNAS Certification:
Competitive Market Pricing:Leveraging years of industry experience, GE Transformer integrates high-quality resources across R&D, production, procurement, transportation, and service, achieving effective cost control.
Fast Delivery: Strong production capacity, multiple freight partners, and a professional pre-sales and after-sales team, adhering to the “customer first” philosophy, provide customers with fast delivery and usage services.
FAQ
1. What is a general purpose isolation transformer?
A general purpose isolation transformer transfers electrical power between circuits while providing complete galvanic isolation between the primary and secondary windings. This isolation helps protect connected loads from electrical noise, transients, and faults on the supply side. The transformer maintains the same frequency and phase while converting voltage levels as needed. GE Transformer general dry type isolation transformers are designed for reliable operation in commercial, institutional, and light industrial environments where electrical safety and voltage stability are essential.
2. What are the common applications for general purpose isolation transformers?
These transformers are used wherever voltage conversion and electrical isolation are required. Common applications include lighting panels, machine tools, control systems, HVAC equipment, and building power distribution. They are also widely used for powering instrumentation and electronic equipment requiring clean, stable voltage. GE Transformer general dry type isolation transformers are suitable for both OEM equipment and facility installations, delivering dependable performance in a wide variety of environments and load conditions.
3. What do I need to consider for transformers energized at low ambient temperatures?
In dry-type transformers, the surrounding air plays a critical role in their operation. Generally, low ambient temperatures do not negatively impact an energized transformer, as the no-load losses typically generate enough heat to maintain proper conditions, even in environments as cold as -30°C. However, transformers stored at low temperatures present two primary concerns:
Insulation Brittleness: At low temperatures, the insulation in the coils may become brittle. Expanding conductors when a cold transformer is loaded, or contracting conductors during cold storage, may cause cracks in the insulation, leading to internal faults.
Condensation Risk: Low temperatures can cause condensation inside the transformer enclosure, as well as on the transformer coils. Energizing a transformer with condensation present on the coils can lead to internal faults and insulation damage.
GE Transformer recommends testing transformers (megger testing), warming them to above 0°C, or following a drying-out procedure if moisture is suspected. Energizing a transformer with compromised insulation due to moisture can cause damage and potential safety hazards.
4.Can general purpose isolation transformers be installed outdoors?
Yes. When supplied with IP54 or higher-rated enclosures, these transformers are suitable for outdoor or damp environments. The polyester resin coating protects the core and windings from moisture, dust, and corrosion, while the weatherproof housing shields electrical connections. For more severe environments, encapsulated construction or stainless-steel enclosures are available. Proper mounting, grounding, and ventilation practices must be followed to maintain performance and meet local electrical code requirements for outdoor installations.
5.What is your minimum order quantity (MOQ)?
We support flexible MOQs. For most export orders, MOQ starts from 1 unit, especially for project-based procurement.
5. What is the typical delivery time?
Standard models typically require 15-20 days, depending on capacity, quantity, and customization requirements.